The Pi Crafters app isn't in the Google Play store, so there are a few steps you need to go through before the app will install on your Android device.Step #1: Go to​Settings>Security>Unknown sources (it may also say​install 3rd party apps). You need to turn on this option whatever it may be listed as.Step #2: Download the file belowStep #3: When it has finished downloading, simply touch the file and it will take you through the install process.Android App

To install, open this webpage on your Mac, click the button below and follow the directions on that page.